Rear-loading scoop



H. McK'. BONNER DECD.- s. T- couucn. ADMINISTRATOR. REAR LOADING SCOOP;

' APPLICATION FILED FEB. 12,3920. Pitnted M 1921..

2 SHEER-SHEET I- Admhvlrtru/w M a H. McK. CONNEMDEG'D. E. T- WMER,ADIIIIISTMTOI. REAR LOADING SCOOP; I t I APPLICATlOIl FILED FEB. I2.I920- 1,394,067, Patented Oct. 18, 1921.

2 SHEETS-SHEET 2;

. I Harry /V flea/7 QD/I/Ier Witnesses fl UNITED STATES PATENT OFFICE.

HARRY MCKEAN CONNER, DECEASED, LATE 0F SCRANTON, PENNSYLVANIA, BY ELI T.CONNER, ADMINISTRATOR, 0F SCRANTON, PENNSYLVANIA.

REAR-LOADING SCOOP.

Specification of Letters Patent.

Patented Oct. 18, 1921.

Application filed February 12, 1920. Serial No. 358,076.

T 0 all whom it may concern:

Be it known that HARRY MoKnAN CON- NER, deceased, late a citizen of theUnited States, and a resident of Scranton, Penn, had prior to his deathinvented certain new and useful Improvements in Rear-Loading Scoops, ofwhich the following is a specification.

The invention relates to scoops designed for mining operations and whichare automatically in operation both-in loading and unloading.

The invention provides a character specified which will prevent the rearclosing member from digging into the bottom of the gallery, chamber orpassage and which will insure a positive closing ofv the rear gate whenthe pull rope or cable is drawn upon to move the scoop with its loadfrom-the receiving point to-the point of discharge.

The invention consists in the peculiar formation of therear gatein twomembers, the manner of mounting and the relative dis-' position of saidmembers, the unique structure of the body with its sides extended toprevent the lower closing member of the gate from digging into thebottom of the gallery, chamber or like opening, and the generalstructure and arrangement all as more fully set forth hereinafter andpointed out in the subjoined claims and illustrated in the accompanyingdrawings, in which Figure 1 is a top plan view of the self loading anddumping scoop embodying the invention.

Fig. 2 is a rear end view thereof, Fig. 3 is a front end view of thescoop, Fig. 4 is a central longitudinal section of the scoop showingtheparts on alarger scale,

the full lines showing the relation of the end gates when-closed, andthe dotted lines the position of said-parts when open,

Fig. 5 is a detail perspective view of an end portion of the lower rearclosing member of the gate.

Fig. 6 is a detail view of an end portion of the lower rear closingmember, a portion of. the side of the body and the connecting meansbetween such parts,

Fig. 7 is a detail perspective view of a connecting element of the upperrear closing member,

Fig. 8 is a sectional detail of the connectscoop of the ing meansbetween the upper rear closing member, the body and the operating means.

Corresponding and like parts are referred to in the followingdescription and indicated in the several views of the drawings by likereference characters.

The body of the scoop comprises opposite sides 1, a bottom 2 and frontand rear gates. In the preferable form,the body of the scoop is oblongand rectangular. The bottom 2 is formed along its longitudinal edgeswith upstanding fianges 3 which extend along the lower edges of thesides 1 and are riveted or otherwise secured thereto. The sides 1 areformed at their lower rear corners with ex tensions 4 which are designedto prevent the penetrating edge of the lower closing member of the reargate from digging intothe bottom of the gallery, chamber, passage orlike opening from which the material is to be removed. The lower rearedges of the eXtensions 1 are made'running to constitute runners wherebythe scoop may upon its rear movement ride obstructing places. The frontgate 5 consists of a plate which is pivotally mounted so as to swingupwardly into open position as indicated by the dotted lines in Fig. 4:.Upper bars 6- and lower bars '7 are secured to the upper and lowerportions of the. gate 5 and project rearwardly and are pivoted at theirrear ends to the sides of the body as indicated at 8. A lifting element9 is attached centrally to the upper portion of the ate 5 andprovidesmeans for swinging said gate into open position when the scoopreaches the unloading point in its forward delivery. The element 9 maybe manipulated by hand or operated automatically as preferred.

The rear gate comprises an upper member 10 and a lower member 11 each ofsaid members consisting of a plate. The upper closing member 10 iscurved between its upper and lower edges whereas the lower closingmember 11 is flat. Both members 10 and 11 are of a length to eXtend'between the sides 1 and the lower member 11 is relatively narrow toprevent its offering a great resistance to the closing movement whenextended into the material to be loaded. The rear gate is set forwardlyfrom the rear edges of the sides 1 o that when closed, the members 10and 11 occupy a position between the sides 1 as indicated most clearly Va socket member 18 similar in Fig. 4. The upper member 10 is pivotallymounted about in line with its upper edge so that'it swingsupwardly andrearwardly when opening as indicated by the dotted line in Fig. 4. Thelower closing member 11 is pivotally mounted about in line with itslower edge so that its upper edge swings rearwardly and downwardly whenopening. A socket member 12 is secured to each end of the member 11 andis formed with an ear 13. A pin 14 projecting inwardly from the lowerrear corner of each of the sides 1 enters the co-acting socket member 12thereby forming the pivot connection between the member 11 and the sidesof the body. If desired anti-friction rollers 15 are disposed betweenthe pins 14: and walls of the socket members so as to facilitate theopening and closing movements of the member 11. A link 16 connects thecar 13 of each socket member 12 with a link 17 of, a sectional operatingbar. Longitudinal movement of the operating bar effects an opening andclosing of the rear gate. The upper closing member 10 is provided withto the socket member 12. A pin 19 projects inwardly from the upper rearcorner of each of the sides 1 and enters the cooperating socket 18thereb pivotally connecting themember 10 to he sides 1. Links 20 connectthe socket members 18 with the links 17. When the rear gate is closedthe members 10 and 11 assume the position substantially as hown by thefull lines in Fig. 4. en the rear gate is open the members 10 and 11assume the position indicated by the dotted lines in Fig. 4. r The upperedge of the mem ber 11 is beveled so as to readily penetrate thematerial to be loaded into the scoop. When the rear gate is in openposition, the penetrating edge of the member 11 is within the outline ofthe rear extensions 4, hence is prevented from digging into the bottomof the gallery, chamber or other openin in which the mining operationsare carrie on. The lower portion of the closing member 11 overlaps therear portion of the bottom 2 and is supported thereby. The member 11 isbeveled at its upper edge upon the rear side so that the beveled edgeoccupies the lowest position when the rear gate is open.

This enables uch beveled edge to ride over obstructions.

A sectional operating member is provided at each side of the scoop andis disposed adjacent the inner face of the side 1 and com priseselements 17, 21, 22, 23 and 24. The elements 21 and 24 are pivotallyconnected to opposite ends of the links 17. Suitable guides 25 securedto the inner face of the sides 1 give properdirection to the operatingmembers and the elements 21 are slidably mounted therein. The endelements 23 and 24: operate through cut away portions of the end gates.A front spreader bar 26 is connected at its ends by links 27 with theforward ends of'the sectional operating members. The-pull rope or cable28 is connected to opposite ends of the spreader bar 26 in any manner. Aspreader bar 29 is connected at its ends with the rear ends of the sideoperating members and a rope or cable 30 isconnected to the endsthereof.

The pull rope or cable 28 and tail rope or project and are adapted toengage catches 33 at the rear edges of the sides 1. At a suitable pointin the rear delivery of the scoop the locking bar 31 is tripped, eitherby hand or otherwise thereby releasing the engagement so that itsmembers may swing into open 7 lines inFig. 1. This is arranged to takeplace when the scoop is within a short distance of the load. 'Acontinued rearward movement of the scoop causes the loose material topass into the scoop and over the rear member 11. After the scoop hasmoved rearwardly a distance to receive the required load, a forward pullupon the rope or cable 28 effects a closing of the rear gate by swingingthe members 10 and 11 into the position shown by full lines in Fig.4.'When the scoop reaches a point in its forward movement at which theload is to be discharged the element 9 is drawnupon upwardly therebyswinging the front gate into open position. At this time the scoop tiltsand as a result the load automatically discharges therefrom. Anysuitable means' may be provided for moving the scoop in oppositedirections to receive the load and to 2. A rear end loading scoop havinglower rear extensions, a rear gate pivotally'mounted between the sidesof the scoop and adapted when in open position'to line within the saidrear extensions, and about in line with the lower edges thereof toprevent the digposition as indicated by dotted 7 orm guards,

ging of the closing member into the bottom of the mine openlng duringthe rearward movement of the scoop.

3. In a rear end loading scoop, a body having lower rear extensions, arear gate comprising upper and lower closing mem bers disposed forwardlyof the rear edges of the sides of the bod the lower closing memher beingrelative y narrow and adapted when in open position to lie between thesaid rear extensions and prevented from digging into the bottom of themine opening thereby.

4. In a rear end loading scoop, a rear gate comprising upper and lowerclosing members pivotally mounted and means for operating the closingmembers in unison with each other.

5. In a rear end loading scoop, a rear gate comprising upper and lowerclosing members, the upper member being pivotally mounted at its upperedge to swing upwardly and rearwardly at its lower edge, the lowermember being pivoted at its lower edge to swing rearwardly anddownwardly at its upper edge, the lower member being relatively narrowso as to close against the load with a minimum resistance and the uppermember being rearwardly curved between its upper and lower edges, andmeans for operating the closing members in unison with each other.

In testimony whereof I afiix my signature.

ELI T. CONNER, Administrator of H arry M 0K ecm Oomwr,

deceased.

